在Scala中解析JSON数组 [英] Parse JSON Array in Scala

问题描述

我有这个jsArray(json数组)，并且我正在使用import play.api.libs.json._库.

I have this jsArray (json Array) and I am using import play.api.libs.json._ library.

[{"device":"Samsung S8","android":true},
{"device":"iPhone 8","android":false},
{"device":"MacBook Air Pro","android":false},
{"device":"Dell XPS","android":false}]

我想遍历Scala中的这个json数组.该数组分配给var dependency.我想获取设备名称为android的设备.我该怎么办?

I want to traverse through this json array in Scala. This array is assigned to var dependency. I want to get the device names which are android. How do I do that?

推荐答案

您可以尝试执行以下操作:

You can try something like this:

val jsonString: String = "[{\"device\":\"Samsung S8\",\"android\":true {\"device\":\"iPhone8\",\"android\":false}, {\"device\":\"MacBook Air Pro\",\"android\":false},{\"device\":\"Dell XPS\",\"android\":false}]"
val jsonList: List[JsValue] = Json.parse(jsonString).as[List[JsValue]]
val filteredList: List[JsValue] = jsonList.filter(json => (json \ "android").as[Boolean])

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